Find domain

[flew62999]

f(x) = 3x - 1
--------
x - 9

 

[flew62999]

f(x) = 3x - 1 / x - 9

 

[stapel]

Use parentheses for clarity:

. . . . .f(x) = (3x - 1) / (x - 9)

To find the domain of a rational function, set the denominator equal to zero and solve. Then recall that you can't divide by zero. So what is the domain?

Eliz.

 

[flew62999]

so x - 9 = 0
x = 9

is this correct?

 

[stapel]

It is correct that, if x - 9 = 0, then x = 9. But what does this mean? How does this relate to the question?

Eliz.[/tex]